Planing-machine



wlllllilllll.

3 Sheets-Sheet 1.

Patented Apr. 13, 1886.

W. H. GRAY.

PLANING MAGHINE.

(No Model.)

(No Model.) 3 Sheets-Sheet 2.

-W. H. GRAY.

PLANING MACHINE.

No, 339,377 Patented Apr. 13, H86.

(No Model.) 3 Sheets-Sheet 3.

W. H. GRAY.

PLANING MACHINE.

W'z/Znesses. I Z

N PETERS, PlwlwLnhagnplmr. Washington, D46.

UNITED STATES PATENT EEicE.

\VILLIAM H. GRAY, OF BROOKLYN, ASSIGNOR TO THE GLEN COVE MACHINE COMPANY, (LIMITED,) OF GREEN POINT, NE\V YORK.

PLANlNG-MACHINE.

BFECIEICATION forming part of Letters Patent NO. 339,877, dated April 13, 1886.

Application filed February 6, 1886. Serial No. 191,002. (No model.)

To all whom it may concern.-

Be it known that I, \VILLIAM H. GRAY, of Brooklyn, (Green Point,)in the county of Kings and State of New York, have invehted a new and useful Improvement in \Vood-Planing Machines, of which the following is a specitication.

In wood-planing machines there are commonly employed feed-rolls, which are arranged in front of the upper cuttei head, and which engage by frictional contact with the lumber, in order to feed it forward to the cutter-head. In order to accommodate lumber of different thicknesses and dimensions, it is necessary that [5 these rolls, or at least the upper one, should be capable of self-adjustment upward and downward, to suit the Varying thickness oflumber, and that such upper roll should be weighted, so as to give it a sufficiently firm bearing upon the lumber. In order to enable these feed-rolls to be positively driven when they are at different distances apart, they are connected by what are termed expansiongears, each of the feed-rolls being provided with pinions or gear-wheels, and pinions or gear-wheels being provided at the front of the rolls, which engage with the pinions or wheels on the rolls and with each other,and are mounted upon suitable shafts. Th rough this system of gearing rotary motion will be transmitted from the lower roll to the upper roll, whatever be the distance of the upper roll from the lower roll. I

My invention consists in a novel combination of mechanism, which is hereinafter described, and pointed out in the claims, whereby the upper feed-roll may be adjusted upward and downward and properly weighted; and it also consists in a novel combination of mechanism, whereby the shafts of the expansiongearing are supported and connected in a more desirable manner than heretofore; and in a further novel combination of parts, whereby the boxes at opposite ends of the upper feedroll are connected, so that both ends of the roll are caused to rise simultaneously in case narrow lumber is fed through the machine near one end of the roll.

In the accompanying drawings, Figure 1 50 represents a side elevation of such parts of a porting the upper cutter-head.

wood-planing machine as are necessary to illustrate my invention. Fig. 2 is a vertical section taken in a plane immediately inside one of the side frames of the machine. Fig. 3 is a plan of portions of the machine. Fig. 4 is a sectional view hereinafter described. Fig. 5 is a sectional elevation showing means employed for weighting the upper feed-rolls where two sets of feed-rolls are employed in front of the cutter-heads. Figs. (3 and 7 are respectively an inside view and a transverse section of a portion of one of the side frames and arock-shaft with which the bearings of the upper feed-roll are connected, showing the construction of the bearing for this rock-shaft in the side frame of the machine. Fig. 8 isa longitudinal section of portions of the machine shown in Figs. 1, 2, and 3, taken in a plane below the feed-rolls,indicated by the dotted line :0 m, Fig. 1;and Fig. 9 is a side view similar to Fig. 1, illustrating a slight modification of my invention.

Similar letters of reference designate corresponding parts in all the figures.

A designates the side frames of the machine, which may be of anysuitable construction, and upon which are erected the frames A, for sup- (6 designates one of the journals of this cutter-head, and a designates the pulley upon one of the journals, which receives a driving-belt. In front of the cutter-head are arranged a pair of feedrolls, B B, supported by roll-stands or upright frames A", erected on the side frames, A,of the machine.

b designates the journals of the upper roll, which are supported in boxes 0, and b designates the journals of the lower roll, B, which is supported in boxes 0. The journals b of the lower roll may be fixed in position, so that the periphery of the roll will be on a level or thereabout with the bed or grating over which the lumber is fed forward to the action of the cutter-heads; but the bearings G of the upper feed-roll, B, should be adj ustablc upward and 95 downward, so that the distance between the feed-rolls may be varied to suit different thicknesses of lumber. The boxes 0 of the upper roll, B, are fitted to slide upon the front faces of the roll-stands A and may be held thereon IOO by bolts 0, which do not, however, prevent the sliding of the bearings O upward and downward.

Extending transversely through the side frames, A, at some distance below their top, is a rock-shaft, D, which has projecting from it between the side frames arms D, connected by rods D with the upper boxes, (3. As here represented, these upper boxes have upon their fronts lugs or ears d, with which the rods D are connected. The rock-shaft D has projecting from it, outside the frame A, a third arm, I), which, by means of a screw, D*, and suitable connections,is adjusted upward and downward in order to turn the rock-shaft D and raise or lower the boxes of the upper roll.

I have here represented a slide, D which is fitted to the outside of the frame, and which is cmnected by a link, D, with the arm D. This slide comprises a nut, d, to which the screw D is fitted, and when the screw D is operated by a handle, d", upon its upper end, the slide D will be raised or lowered, and through the arm D the rock-shaft D will be turned. The slide D may be guided in any suitable manner upon the side frame, A A, of the machine. I have here represented it as slotted at d, to receive a bolt, d, which is tapped into the side frame, A, and I have also represented a tongue or iib, (1", upon the rollstand A, which engages a groove upon the is of sufficient length to afford slide D Either or both these means of guiding the slide D maybe employed.

In order to hold the upper feed-roll, B, with sufficient pressure against the lumber, it is necessary that it be weighted, and I have therefore shown the rock-shaft D as fitting in slotted bearings c in the side frames, A, and as being weighted by levers D which are fulcrumed at (1 and which have upon them adjustable weights at. The rock-shaft D has a similar lever applied at each side of the machine; and these levers are here represented as supported in stirrups d, which receive the rock-shaft through them, as best shown in Fig. 2.

In order to prevent the bearings d for the rock-shaft D from becoming clogged by fine chips or other refuse, which would prevent the roll B from coming down to its proper position, I employ a novel construction of bearing, (i for said rock-shaft, which is best shown in Figs; 6 and 7. At each side of the bearing (1 are ribs or cheek-pieces d", which guide the rock-shaftD in its rising and falling movements, and below the bearing d is a rib, d, at each side of which is a slot or opening, d, for the escape of chips or refuse downward from the bearing of the rock-shaft. The rib (1 may be of little width--say about threeeighths of "an inchand, as shown in Fig. 7, ample support to the rock-shaft D.

In some cases two pairs of fcedrolls are employed in front of the cutter, and I have repsented in Fig. 5 an arrangement whereby the rock-shafts D, which are connected, as above described, with the upper rolls of the two pairs, may be weighted.

shafts D, and the weighted lever Dv is to be the cross-bar E. By this simple combination the upper rolls of two pairs may be weighted by two weighted levers,applied one at each side of the machine.

In the example of my invention shown in Figs. 1, 2, 3, and 8 the arms D and D project in the same direction, the arm D being longer than the arm D, and the screw D is turned lowering of the boxes 0.

In the example of the invention shown in- Fig. 9 the arms D and D project in opposite directions from the rock-shaft D, and to efl'ect the lowering of the boxes 0 the screw D must be turned in a direction to raise the arm D. In machines of this class the lower feedroll, B, of' each pair is driven by a belt and gearing and through what are termed expansion-gears. The lower roll transmits ever be the distance between the two rolls. Upon the two feed-rolls B B- are the usual pinions or gears, e c, which are geared together through other usual pinions or gears, e e. The gears e e at opposite sides of the machine are supported upon shafts 6 c and in this example of the invention the pinions or gears e e are secured fast to the shafts, so that the latter will rotate with them. The lower shaft, e, is

4, and from the inner side of the roll-stand a circular hub or journal, 0 projects inward, and has pivoted or journaled upon it a link, e. The bearings e for the upper shaft, 0, are cytherefore supported by such links.

e designates horizontal links, which are at one end journaled upon the cylindric bearings endjournaled upon the cyiindric hubs or projections e, projecting inward from the bearings O of the upper feed-roll, B. The shaft 6 lower i'eedroll, B, and by means of the links 6 'c,arranged and supported as described, the pinions e" e are always held in engagement withthe pinions e e on the feed-rolls and with each other, notwithstanding the vertical adj ustment of the upper feed-roll, B.

nearer one end than the other thereof, one end of the roll B will be raised, but the other end will be held down by the weighted lever at that end thereof. This canting of the upper rollis apt angle, and also strains the teethof the expansion-gears and causes the gears to bind one on another. In order to cause the boxes 0 at opin a-direction to lower the arm D to efiect the positive motion to the upper roll, B, whatis in fixed relation to the journals b of theto produce the feeding of the lumber at'an A beam or cross-bar, E, rests upon the two 7 I hung in the stirrup d", which is connected with g too supported in a babbitted bearing, e, which is formed in therollstand A, as shown in Fig.

lindric, and are here represented as formed Y integral with the upright links e, and are supported bythe links a and are at the other When narrow lumberis fed into the-machine so that it passes between the feed-rolls B B,

, feed-roll and the lower shaft.

posite ends of the roll B to rise simultaneously, I may connect them by means shown best in Figs. 1 and 2.

F designates a rock-shaft mounted in bearings in the side frames, A, which permit it to turn simply. This rock-shaft]? has at the ends, and just within the frames A. arms F, which lie at the sides of the armsDQand are each provided wit-h a sector of gear-teeth,f, engaging a corresponding sector of teeth,f, on the arm D. The teeth of these sectors f f consist of lateral projections on the arms D F, and hence the sectors will not become clogged with chips or refuse.

\Vhen one end of the rock-shaft D is raised by narrow lumber fed through at that side of the machine, the toothed sectors f at that end of the shaft D will act on the corresponding sector, f, to turn the rock-shaft F, and by the turning of the shaft F and the action ofthe sector f at its opposite end 011 the corresponding sector,f, the opposite end of the shaft D and the box 0 connected therewith will be correspondingly raised.

I am aware that it is not new to employ with the lower feed-roll and the vertically-movable upper feed-roll of a wood-planing machine a system of expansion-gearing for transmitting motion from the lower to the upper feed-roll, consisting of upper and lower shafts carrying gear-wheels, which are geared together and with the feed rolls, the upper shaft being connected by pivoted links with the upper I do not therefore claim such a construction, broadly, but desire to restrict this part of my invention to the novel features of construction hereinabove described.

The wheels 0" c are fast upon the upper and lowershafts, e a and said wheels and shafts turn together. The links e have formed integral with their upper ends the bearings e, for the upper shaft, 6*, and at their lower ends said links are pivoted on the circular hubs 6 proj eetingin ward from the roll-stands A concentric with the lower shaft The links e", which connect the upper shaft, e, with the upper feed-roll, are not j ournaled on the shaft e -or the journals of the roll, but are fitted at one end on theexterior of the boxes or bearings e", and at the other end on the circular hubs e, which are on the movable boxes 0 of the upper feed-roll.

WVhat I claim as my invention, and desire to secure by Letters Patent, is

1. The combination, with the lower feed-roll and the upper feed-roll j ournaled in verticallymovable boxes, of a rock-shaft provided with arms which are connected by rods with the movable boxes at opposite sides of the machine, and a screw and connections for turning said rock-shaft and raising or lowering said boxes, substantially as herein described.

2. The combination, with the lower feed-roll and the upper feed-roll journaled in verticallymovable boxes, of a rockshaft provided with arms which are connected by rods with the movable boxes on opposite sides of the machine, a third arm projecting from the rockshaft, and a screw and connections between it and said arm, for turning the rock-shaft and raising or lowering said boxes, substantially as herein described.

3. The combination, with the lower feed-roll and the upper feed-rolljournaled in verticallymovable boxes, of a rock-shaft provided with arms projecting in one direction and connected by rods with the movable boxes at opposite sides of the machine, a third arm projecting from the rock-shaft in a direction opposite to the other two arms, and a screw and connections between it and said third arm for turning the rock-shaft and raising or lowering the boxes, substantially as herein described.

4. The combination, with the lower feed-roll and the upper feed-rolljournaled in verticallymovable boxes, of a rock-shaft provided with arms connected by rods with the movable boxes on opposite sides of the machine, a third arm projecting from said shaft, a vertically-movable slide connected with said third arm, and a screw for adjusting said slide upward and downward and so turning the shaft and raising or lowering the boxes,substantiall y asherein described.

5. The combination, with the upper feedroll and the lower feed-roll j ournaled in verticallymovable boxes, of a rock-shaft provided with arms connected by rods with the said boxes on opposite sides of the machine, and by the turning of which shaft the rollboxes are raised or lowered, and slotted bearings for said shaft, open at the bottom, save for ribs on which the shaft rests, and which extend lengthwise thereof, substantially as herein described.

6. The combination, with the lower feedroll and the upper feed-roll journaled in vertically-movable boxes,of a rock-shaft provided with arms which are connected by rods with the movable boxes on opposite sides of the ma chine, a screw and connections, whereby the shaft is turned to raise or lower the said boxes,

and weights connected with said rock-shaft for -feed-roll j ournaled in movable boxes, the upper and lower shafts, 0 c and gear-wheels e e, fast on and turning with the shafts and geared with the feed-rolls and with each other, of bearings e",wherein the upper shaft, 0', may turn, links a fulcrumed concentric with the lower shaft and supporting said bearings e", and links e, connecting the bearings c with the movable boxes of the upper feed-roll, substantially as herein described.

8. The combination, with the upper and lower feed-rolls,fixed boxes for the lower roll, and the upper and lower shafts, 0 6 having fast upon and turning with them gear-wheels e" eflwhich are geared with the upper and lower feed-rolls and with each other, of movable boxes for the upper roll, provided with circular hubs e, concentric with the upper roll-journa1s,bearings e", for the upper shaft, 0, links e ,-fu1- crumed concentric with the lower shaft and supporting the bearings 6 and links 6", jour naled on the bearings e and on the hubs e of the upper-roll boxes, substantially as herein described.

9. The combination, with the upper and lower feed-rolls BB, of the boxes O,forthe upper roll, B, provided with the circular hubs e, the upper and lower shafts, e 6", having fast upon and turning with them wheels 6 e geared with the feed-rolls and with each other, the roll-stands Aflprovided with bearings and inwardly-projecting" circular hubs e for the lower shaft, 6", the links a pivoted on the hubs 6 and having formed integral with them at theirnpper ends the bearings 0 for the upper shaft, efland the links 6 pivoted on the bearings e and on the hubs e of the boxes 0, substantially as herein described.-

- 10. The combination, with the upperj'and' lower feed-rolls and vertically-movable boxes for the upper roll, of two rock-shafts geared together by sectors, so that a turning movement-of onewill be transmitted to the other,

and one of which is supported in slotted bear 3 by ings which permit of its rising and falling,rods connecting the vertically-movable boxes with arms on one-of said shafts, a thirdarmprqjecting from the vertically-movable rock-shaft, anda screw and connections between it and said third arm,-whereby the rock-shafts may be operated to raise and lower simultaneously the movable boxes on opposite sides of the machine, substantially as herein ,described.'j

- WM. H. GRAY;

Vitnesses:

O. HALL, FREDK. HAYNES. 

